Switch-lock.



. C. KREINER..

SWITCH LOCK, APPLICATION FILED ima, 19.15. 1,181,338. l v Patented June 13, 1916.

3 SHEETS-SHEET l- .8. c. KKREINEII.

SWITCH LOCK.

I APPLICATION man 1m13.191s.' 1,187,338. Patented June 13, 1916.

y3 SHEETS-SHEET 3.' r

W i Qwvcn IM,

. WIV/loef? of' a simple and inexpensive device of this 'BENJAMIN' C. KBEINER, OF WASCOTT, WISCONSIN.

SWITCH-Loox.

To all whom t may concern.' l

Be it known that I, BENJAMIN C.

.KREiNE'igv a citizen ofthe United States,

residing at Wascott', inthe county of Douglas and State of lVisconsin, have invented certain new' and useful Improvements in Switch-Locks; and 1 do-hereby declare the following to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and .use the same.

Specification of Letters Patent.

. My invention relates to new and useful improvements in switches provided with vlocking means to prevent closing thereof andthe invention resides in the provision character that is particularly designed' for use in connectionwith automobiles and 1s i arranged-to be operated by a specially designed key.

Another object is to provide a switch of v the character described in'which the'contact portions thereof are normally spaced -from l .one another'and .cannot be moved into contactingengagement with each other Without using a specially designed key.

Another object is' to provide a device of the character described that `employs a two part key that is constructed so that the parts are movable relativeto one another and will operate to close the switch in a rel liable and expeditious manner.

Another object is to rovide a switchlock Y of the character descri ed that maybe conthat may be readily assembled and-disassembled, which is small and capable of being readily attached upon structed of few parts,

I -the foot board or some other suitable place of an automobile or like vehicle and is inexpensive to manufacture. y

Theabove and additional objects are ac- Y complished by such means as are illustrated claims.

`in the accompanying drawings, described in the following specification and then more particularly pointed 'out in the appended With reference to the drawings, wherein practice, and throughout theseveral views oi which similar reference numerals designate ycorresponding parts: Figure l is a side #elevation of my improved switch lock with the, coverlplate removed showing the mechanism in locked position and the Contact plates of the switch out of engagement with .form a guide for Patent-ea June 13, i916;

Apiicauon inea January a, 1915. serial No. 1,1%.A

the key, Fig. 8 is a detail perspective View of one of the elementsl of the key, Fig. 9 is a detail perspective View of the other parts of the key, Fig. 10 is a detail side elevation of the latch plate, Fig. 11 is a detail side elevation of the switch operating bolt, and Fig. 12 is a detail view 'of the operating lever for one ofthe contact plates.

Referring to thedrawings by characters of reference, the numeral l designtes as an entirety a rectangular casing equipped with a porcelain base 1n and provided with a 'removable closure plate 2, on one side.

Pivotally mounted within the casing 1 adjacent the upper and lower ends thereof lare contact plates 3 and 4 that are preferably of copper and arranged so as to contact but are normally spaced from one another. A. retractile spring 5 is secured at one end to the intermediate portion 'of the pivoted contact plate 4 and to a lug 6 carried by the casing and lnormally holds said contact plate inan angular position out of engagement with the contact plate 3. An eXpansion spring 7 is secured to a lug 8 on the casing at one end to the intermediate portion of the plate 3 and disposed to the plate 3 normally similarly to the one 4. These plates 3 and 4 are to 4be connected with the electrical conductors, not shown, and serve as a switch.

Mounted within the casing is an angularv plate operating mechanism supporting' plate designated 9 as an entirety. This plate is secured by screws 10 flatly 'upon one face of the casing 1; The plate 9' is provided with spaced lugs an elongated switch operating bolt. 12 that is slidablyinounted upon 'the plate 9 and extends between the pivot points of the switch plates 3 and .4. This switch operating bolt 12 is formed at'its ends with lateral projections 13 and 14 that are both upon the same face of the bolt. The face of the projection 14 opposed to the projection 13 has mounted thereon a stripv 11 arranged in pairs tov of `ins'iilatio'nf 'and is designed to coper-` i; ate with the free-end 'of the Contact plate 4a The contact plate 4fisjprov1ded upo'nthe face thereofopposed to the insulation with an insulationstrip 16 which strlp `ex,-` ltends over' and upon the end of theplate Q and is flush with" the opposed side thereof.

The projection 14 engages the' insulation-16 on the plate'y 4 and providesjmeans for movingithey plate Ltinto operative position.

The projection 13 extends above the upper Aedge of the 'bolt' and" is/Yprov-id'ed'upon the .face thereof' opposed-tothe insulation strip g 15 vand atk the lower. end of said face with .a projection' or stop'17 Athat is'designed' to coperatewith Aa 'key which will be later and'more fullydescribed.` lng '18 also .actingras aj s'topmnd' extending at rightv angles tothe one' 1'7 i`scarried .onthe vunder .part f `the bolt 12 andf:is' designedV to liniit" 'the movement' of saidf'bolt in one directlon.

An expansion' vpreferably l1eliealj`- spring. 19

" e issecur'ed aft Aone"endtoaflug 20fon the plate ,9 and= at" it"s'v other end to the interface of lthe'ip'rioje'ctionjl3on the lbolt 12. This-spring tends to force thebolt '12"to .the '-left'i The projection or' stop 1S engages the adjacent V ment' ot'l the I'bolt 12. v

platey) is a .contet operating lever 22 that extends jnpv'ardly normal-ly at right angles to the bol't'12. 4The upper cndof the'lever strp'of` insulation' 23 that is designedio engage a strip 25k similar to. the one '1(5 Abut thatis carried on the'fplate 3 'lhis lever 221s designed-to cngageand move the plate into `coperative engagement with `the plate 4. Pivoted vas at upon the plate 9 above r the bolt12 is a guard latch plate 20 `that is Infov-ided upoiiits lower `face with ,a recess 27 opening on' said limer tace and ccnt'to said-.recess asiat 23. An exl'iansion spr1ng-29secured atxone elige `to a lug 30 on the plate Q'andatlits yother end adjacent to the freey end of tlie', V plate 26 -norrnally holds saidguar'dandlatch plate inproper 5o- 1 position.'- 2

The plate 2 for closing-the casingis providedwvitli la key 'holeno't shown andfis designed to receive a "key .designated '31l as an entirety. key 3.1 espec'iall-yA designed' 'fon use yin. c'onr'ieetionv with f my vsivitch 'and consists' fof' twocoperative f and relatively movable v parts 32 and 33g lor bet-l ter described as switch bolt operating and `contact lever operating "keys 4-Vithp'articuulai" reference lo. Figs; if 8 and@ 'wherein I haveAillL'lsti-ated 34 designates t angles to the body 34" if livoted as at 21 to thel vloiver;part' of ther mesas, ,r

integral-therewith. Each of the projections is provided with a right angula-r extension orv projection 37 which extends beyond the end-ofthe body portion a slight distance. The part 33 of they key 31.

consists of a relatively small preferably' cylindrical bodyl portion 38 that is inserted through theitubular body `portion 39 and` 'bent to'I provide a right angular extension 39 at one end.' This extension 39 and the one 36provide operating handles Afor thel key.. A right angular and relatively large extension 40 is yformed on the'other end of the body 38 and is vsimilar in construction 'tefthe extension 3 5. The extensions 40 and 'aiiearranged tomove the elements ofthe mechanism so that the contact ofthe lplates of the key is held againstrotatt-ion .by having Y the portion tengage vtheopposed sides of the recess 27. The next rstep lin the vopera-l tion.` is =to turn the element'r32ofthe key so `that the portion onsthe extension engages and moves the ylever 22, passes the lever and then. engagesthe cut away- .or

beveled face 28v on .the latch. andy guard plate 26. This portion 32 is rmoved approximately degrees and-When it engages the beveled'face 28 Lthe plate 26 js moved-'upwardly and releases fthe-extension .40 on the element The element 33 is thenzturned to the right, that is, ina clockwise :direction after being released from .the plate 26 until the portion posed faceof-the extension `13 .on the bolt 12. I "urther movement' of the element 40 1n a. c,lock\vise rdirection ser-ves, to move the 40 'isgbrought to engage the o'p- 110 bolt 12 Ato .the rightagainst the tension of the Aspring ,19. The inovementof the ybolt?A 12 to the rightufmoves the contact plate A; into approximately vertical Aposition and closer tothe plate 3.1 llhfenthe ,platey 26 is `moved :into position the-portion 37 of f the' element v32 .of .the vkey .is in the position .as shown in Fig. y2 and Ais movedffromlsuch position into 'an approximately horizontal position in a counterclockwise direction sov as to engage and force the lever A22 out- I wardly thus causingitlic plate 3'to move .into

` contacting .engageinent with fthe platejl.

vIt' willbe 'readily'fseen with ,reference to the `foregoing description. land accompanying drawings `tha'tylhave provided ,a sim-` ple and effective switch thatwill only operate' in connection Iivith Iny 'improvedl and 130 specially designed key. Should a key of the ordinary type be inserted in the key hole to operate the device it would engage in the recess 27 in the Aplate 26 and be prevented from movement.

To lock the device, that is open the switch, the extension LO'is moved into normal position, that is into alinement with the key hole from horizontal position asV shown in Fig. ,3 and the extension 35 is moved in a counterclockwise direction until'it registers with'and is disposed 'within the recess 27 drawn.

in the plate 26. The key may then be with- It Win ble-noted that I have provided a device that maybe readily and easily operated so that an electric circuit is opened and closed as desired 'and which is constructed so as to prevent. unauthorized persons'not equipped with a specialkey, from y operating the device. 'Further, knowledge of the manner of using the key must be had before a successful operation ofthe' device maybe gotten.l

In practice; I have found that the form of my invention, illustrated in the drawings and referred to in the above description, as

the preferred embodiment is the most eflils i cient and practi-cal;yet realizing'thatthe y a casing, contact plates pivoted casing and normallyspaced from each other,

conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that .various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention, as defined in the appended claims.

What is claimed is l 1. In a device of the character described, a casing, contact plates pivoted within the casing and normally spaced from each other,

a switch bolt slidable within the casing and f having projections'at each end, one of the projections engaging one of the contact plates and arranged to move the same intol operative position, a pivoted contact plate lever within the casing arranged 'to engage the other of the contact plates to .move it into position, a ,spring normally forcingsaid bolt into retracted position and meansl positioned between the lever and other of the projections on the bolt to move th lever and bolt in opposite directions where `y the contact plates engage each other. l '-2. In,` a device of the character described, einen the a switch bolt slidable within the casing and having projections at each end, one of the projections engaging one ,at the contact plates and arranged tomove the same into operative position, a pivoted contact plate lever within the casingv arranged to engage the other of the contact plates to move-it into position, a spring normally forcing said bolt into' retracted position, means posi- .tioned'between the lever and other of the projections on the bolt to move the lever and bolt in opposite directions wherebythe contact plates engage each other, and a latch Yplate pivoted above said bolt and having a recess opening on its under edge disposed between said last named projection and the lever t'o receive a key and prevent .the same from moving the bolt.

3. In a device of the character described,

a casing, contact plates pivoted within the j casing and normally spaced from each other, a switch bolt slidable within the casing and havingprojections at each end, one of the projections engaging one4 of the contactA Vplates and arranged to move the same into operative position, a pivoted contact plate lever within the casing arranged to' engage the other of the contact plates to move it into position, a spring normally forcing said bolt into retracted position and means positioned between the lever and other of the )rojections on the bolt to move the lever and olt in opposite directions whereby the con- `tact plates engage each other, said means 'consistlng o'f a key comprising relatively movable parts.

4:. In a device of the character described,

a casing, contact plates pivoted within the casing and normally spaced from eachother,

a switch bolt slidable within the casing and having'projections at each end, one of the projections engaging one of the contact plates and arranged to move the same into operative position, a pivoted contact plate lever within the casing arranged to engage the other of the contact plates /to move it into position, a spring normally forcing said bolt into retracted position, means positioned between the lever and otherl of the projections on the boltto move the lever and bolt in opposite directions whereby the con-v inthe casing and arranged to move' one of said contact members into operative position, lever pivoted within the casing and arranged to move the other of the contact members into position where it will engage the rst named Contact member, said lever beingvpositioned, intermediate the ends of the bolt, relatively movable members positioned between the lever and one end of the y bolt; and lhaving projections. arranged'to en- ,l .tween thelever and one end vof the bolt, and

opposite directionsto"b1i1xgtheny lContact gage the lever and bolt vto 'move them Jin' 5 6.?1'1; a switch lock the combination with members intoen agement with eaehother a casingofpivoted Contact members mount-I and means tovhol one of the;movable'mem'#l v, ed wthn'thecasing and rnormallyspaeed-fliers-againstfmovementandatrangedtorevfrom each other, a-'switeh boit'slidable withlease said member upon the'moverret"ofVv y in the casing and arranged tomoveone of said other Vrelatively*moyable memberina 25 1o said eonta'ct'members into operatiyeposicertaindirection.4 Y

- tion, a-lever'pivotedfwithin the leasing, and ar- In testimony whereof'laix my signature rangedfto movepthegotherof thecontaet memin presence"oftvvmywitnesses.v f Y, Ibers' intovposition'fwhereit wi11-engage the 4 "BENJAMINAQ K11-EINER. AfirstnamedContactjmember, saidlever being Witnesses:A 15 positioned intermediate the ends: of the bolt," JOSEPHITERRY,

gage' .thelevre'rnand the bolt to movethem `in provided with projections arranged toA enmembers into engagement with each other.` opposite directions to bring the contact 2O i 

